完成后如上图所示
<link href="../Styles/Web/PhotoCss.css" rel="stylesheet" type="text/css" /> <script src="/Scripts/Web/Photo.js" type="text/javascript"></script> <script type="text/javascript" src="/Scripts/Web/PhotoRun.js"></script>
在head下引入上面三个文件，这三部分文件代码如下，相应目录自已修改
PhotoCss.css
.container{290px; height:224px; border:0px;} .container img{290px; height:197px;} .container img{border:0;} .num{ position:absolute; right:5px; bottom:4px;} .num li{ float: left; list-style:none; color: #fff; text-align: center; line-height: 17px; 17px; height: 17px; font-family: Arial; font-size: 12px; cursor: pointer; margin: 1px; font-weight:bold; background-color:#AF291D; } .num li.on{ line-height: 17px; 17px; font-weight:bold; height: 17px; font-size: 12px; border: 0; background-color: #AF941D ; font-weight: bold; }
Photo.js 这个JS代码完全不用动，也不用去完全理解，稍微读懂就行
var photo= function (id) { return "string" == typeof id ? document.getElementById(id) : id; }; var Extend = function (destination, source) { for (var property in source) { destination[property] = source[property]; } return destination; } var CurrentStyle = function (element) { return element.currentStyle || document.defaultView.getComputedStyle(element, null); } var Bind = function (object, fun) { var args = Array.prototype.slice.call(arguments).slice(2); return function () { return fun.apply(object, args.concat(Array.prototype.slice.call(arguments))); } } var Tween = { Quart: { easeOut: function (t, b, c, d) { return -c * ((t = t / d - 1) * t * t * t - 1) + b; } }, Back: { easeOut: function (t, b, c, d, s) { if (s == undefined) s = 1.70158; return c * ((t = t / d - 1) * t * ((s + 1) * t + s) + 1) + b; } }, Bounce: { easeOut: function (t, b, c, d) { if ((t /= d) < (1 / 2.75)) { return c * (7.5625 * t * t) + b; } else if (t < (2 / 2.75)) { return c * (7.5625 * (t -= (1.5 / 2.75)) * t + .75) + b; } else if (t < (2.5 / 2.75)) { return c * (7.5625 * (t -= (2.25 / 2.75)) * t + .9375) + b; } else { return c * (7.5625 * (t -= (2.625 / 2.75)) * t + .984375) + b; } } } } //容器对象,滑动对象,切换数量 var SlideTrans = function (container, slider, count, options) { this._slider = photo(slider); this._container = photo(container); //容器对象 this._timer = null; //定时器 this._count = Math.abs(count); //切换数量 this._target = 0; //目标值 this._t = this._b = this._c = 0; //tween参数 this.Index = 0; //当前索引 this.SetOptions(options); this.Auto = !!this.options.Auto; this.Duration = Math.abs(this.options.Duration); this.Time = Math.abs(this.options.Time); this.Pause = Math.abs(this.options.Pause); this.Tween = this.options.Tween; this.onStart = this.options.onStart; this.onFinish = this.options.onFinish; var bVertical = !!this.options.Vertical; this._css = bVertical ? "top" : "left"; //方向 //样式设置 var p = CurrentStyle(this._container).position; p == "relative" || p == "absolute" || (this._container.style.position = "relative"); this._container.style.overflow = "hidden"; this._slider.style.position = "absolute"; this.Change = this.options.Change ? this.options.Change : this._slider[bVertical ? "offsetHeight" : "offsetWidth"] / this._count; }; SlideTrans.prototype = { //设置默认属性 SetOptions: function (options) { this.options = {//默认值 Vertical: true, //是否垂直方向（方向不能改） Auto: true, //是否自动 Change: 0, //改变量 Duration: 50, //滑动持续时间 Time: 10, //滑动延时 Pause: 2000, //停顿时间(Auto为true时有效) onStart: function () { }, //开始转换时执行 onFinish: function () { }, //完成转换时执行 Tween: Tween.Quart.easeOut//tween算子 }; Extend(this.options, options || {}); }, //开始切换 Run: function (index) { //修正index index == undefined && (index = this.Index); index < 0 && (index = this._count - 1) || index >= this._count && (index = 0); //设置参数 this._target = -Math.abs(this.Change) * (this.Index = index); this._t = 0; this._b = parseInt(CurrentStyle(this._slider)[this.options.Vertical ? "top" : "left"]); this._c = this._target - this._b; this.onStart(); this.Move(); }, //移动 Move: function () { clearTimeout(this._timer); //未到达目标继续移动否则进行下一次滑动 if (this._c && this._t < this.Duration) { this.MoveTo(Math.round(this.Tween(this._t++, this._b, this._c, this.Duration))); this._timer = setTimeout(Bind(this, this.Move), this.Time); } else { this.MoveTo(this._target); this.Auto && (this._timer = setTimeout(Bind(this, this.Next), this.Pause)); } }, //移动到 MoveTo: function (i) { this._slider.style[this._css] = i + "px"; }, //下一个 Next: function () { this.Run(++this.Index); }, //上一个 Previous: function () { this.Run(--this.Index); }, //停止 Stop: function () { clearTimeout(this._timer); this.MoveTo(this._target); } };
PhotoRun.js 这是需要我们来设置的一个JS我们唯一要修改的只有一个要显示几个图片的参数
//alert(document.getElementById('PictureNum').value); function RunPic(i) { //var i = 4 var forEach = function (array, callback, thisObject) { if (array.forEach) { array.forEach(callback, thisObject); } else { for (var i = 0, len = array.length; i < len; i++) { callback.call(thisObject, array[i], i, array); } } } var st = new SlideTrans("idContainer2", "idSlider2", i, { Vertical: false }); var nums = []; //插入数字 for (var i = 0, n = st._count - 1; i <= n; ) { (nums[i] = photo("idNum").appendChild(document.createElement("li"))).innerHTML = ++i; } forEach(nums, function (o, i) { o.onmouseover = function () { o.className = "on"; st.Auto = false; st.Run(i); } o.onmouseout = function () { o.className = ""; st.Auto = true; st.Run(); } }) //设置按钮样式 st.onStart = function () { forEach(nums, function (o, i) { o.className = st.Index == i ? "on" : ""; }) } st.Run(); }
html的页面代码如下其中DIV的ID UL修改则上述参数也要修改
<div class="container" id="idContainer2"> <table id="idSlider2" border="0" cellpadding="0" cellspacing="0"> <tr> <asp:Label ID="ImagesPart" runat="server" Text="Label"></asp:Label> </tr> </table> <ul class="num" id="idNum"> </ul> </div> <script type="text/javascript"> RunPic(<%=PhotoCount()%>); </script>
上述RunPic方法参数通过JS调用后台来获得
后台方法如下
public int PhotoCount() { return 一个值 }
按上面步骤一个个来，你将会得到一个图片切换效果的一块DIV区域